Thank you for viewing. This is the Nintendo DS software, "Masu x Masu Hyaku-Masu Keisan" (Multiplication and Division 100-Cell Calculation). I purchased it over a decade ago and have stored it in a dark place. It has been in someone's hands once, so there are scratches on the case and slight folds in the instruction manual. There is no problem with playing the game, but please refrain from purchasing if you are sensitive to such details. Data has been deleted, and operation has been confirmed. Instant purchase is available. If you have any other questions, please feel free to ask m(_ _)m Games / 3DS / DS lite / DS i / Elementary School Student / Arithmetic / Multiplication / Study / Education / Hideo Kageyama